RSpec
Ruby on Rails
Ruby
method
hex
v2_2_9 -
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Class: SecureRandom
- 1_8_6_287
- 1_8_7_72
- 1_8_7_330
- 1_9_1_378
- 1_9_2_180
- 1_9_3_125 (0)
- 1_9_3_392 (0)
- 2_1_10 (4)
- 2_2_9 (0)
- 2_4_6
- 2_5_5
- 2_6_3
- What's this?
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base64
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bytes
(>= v2_4_6)
-
gen_random
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gen_random_openssl
(>= v2_5_5)
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gen_random_urandom
(>= v2_5_5)
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hex
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lastWin32ErrorMessage
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random_bytes
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random_number
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urlsafe_base64
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uuid
= private
= protected
hex(n=nil)
public
SecureRandom.hex generates a random hexadecimal string.
The argument n specifies the length, in bytes, of the random number to be generated. The length of the resulting hexadecimal string is twice n.
If n is not specified or is nil, 16 is assumed. It may be larger in future.
The result may contain 0-9 and a-f.
p SecureRandom.hex #=> "eb693ec8252cd630102fd0d0fb7c3485" p SecureRandom.hex #=> "91dc3bfb4de5b11d029d376634589b61"
If secure random number generator is not available, NotImplementedError is raised.
